The deccvflt() function

The deccvflt() function converts a C float type number into an ESQL/C decimal type number.

Syntax

int deccvflt(flt_val, dec_val)

float flt_val;

dec_t *dec_val;

flt_val: The float value that deccvflt() converts to a decimal type value.
dec_val: A pointer to a decimal structure where deccvflt() places the result of the conversion.

Return codes

0: The conversion was successful.
<0: The conversion failed.

Example

The following example program converts two float type numbers to DECIMAL numbers and displays the results.

#include <stdio.h>
EXEC SQL include decimal;
char result[41];
main()
{
   int x;
dec_t num;
float f = 2147483674;
printf(“DECCVFLT Sample ESQL Program Running.\n\n);
if (x = deccvflt((float)1234.5678901234, &num))
   {
   printf(“Error %d in converting double1 to DECIMAL\n”, x);
   exit(1);
   }
if (x = dectoasc(&num, result, sizeof(result), -1))
   {
   printf(“Error %d in converting DECIMAL1 to string\n”, x);
   exit(1);
   }
result[40] = ‘\0’;
printf(“ String Value = %s\n”, result);
printf(“ Number 2 (float) = %.1f\n”, f);
if (x = deccvflt(f, &num))
   {
   printf(“Error %d in converting float2 to DECIMAL\n”, x);
   exit(1);
   }
if (x = dectoasc(&num, result, sizeof(result), -1))
   {
   printf(“Error %d in converting DECIMAL2 to string\n”, x);
   exit(1);
   }
result[40] = ‘\0’;
printf(“ String Value = %s\n”, result);
printf(“\n DECCVFLT Sample Program Over.\n\n”);
exit(0);
}

Output

DECCVFLT Sample ESQL Program running.

Number 1 (float) = 1234.5678901234
  String Value = 1234.56787
Number 2 (float) = 2147483647.0
  String Value =  2147483647.0

DECCVFLT Sample Program over.